Home / 7,819.80-10,789.59-4,631.52

Finding the Fourth Proportional to 7,819.80, 10,789.59 and 4,631.52

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Solution

The fourth proportional to 7,819.80, 10,789.59 and 4,631.52 is: 6,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.80 : 10,789.59 = 4,631.52 : x
  2. Step 2: Convert to fraction form
    7,819.80/10,789.59 = 4,631.52/x
  3. Step 3: Cross multiply
    7,819.80x = 10,789.59 × 4,631.52
  4. Step 4: Simplify right side
    7,819.80x = 49,972,201.88
  5. Step 5: Solve for x
    x = 49,972,201.88/7,819.80
  6. Step 6: Final answer
    x = 6,390.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.